Hioki clamp meters are best-in-class measuring devices incorporating Hioki’ s expertise in current sensing technology. The CM3289 is a True RMS rectifying 1000A AC clamp meter that features a broad operating temperature range of -25° C to 65° C, thin and compact clamp core and optional flexible current sensor that you can attach to let you get into the tightest spots.
CAT IV 300 V (Current)
CAT III 600 V (Current)
CAT III 300 V (Voltage)
CAT II 600 V (Voltage)
Key Features
- The CM3289 is the successor to the popular 3280-20F with a redesigned thinner sensor to help you get into the tightest spaces.
- New redesigned sensor for even easier clamping
- Expanded -25 °C to 65 °C operating temperature range
- Measure even harmonic waveform components using the True RMS method
- Connect the CT6280 flexible sensor to measure up to 4199 A in thick or paired wires
Technical Data
| Application | General purpose |
| Jaw opening | 57 mm |
| Current range ac rms | 1'000 A |
| Accuracy ac current | 1.5% +/- 5 Digits |
| AC Response | True-rms |
| Current range dc | - |
| Accuracy dc current | - |
| Voltage range ac | 4.2 V - 600 V |
| Accuracy ac voltage | ±1.8 % rdg. ±7 Digits |
| Voltage range dc | 420 mV - 600 V |
| Accuracy dc voltage | 1.0% +/- 3 Digits |
| Resistance range | 420 Ω - 42 MΩ |
| Frequency measurement range | 40 Hz - 1 kHz |
| Auto off | yes |
| Safety | CAT IV 300 V, CAT III 600 V |
| Dimensions | 57 x 181 x 16 mm |
| Warranty | 3 years |

